Tube-frame support



Filed Dec, 31 l92l 2 Sheets-Sheet l WML$W Sept. 8, 1925.

L. B. JENCKES TUBE FRAME SUPPORT .2 Sheets-Sheet 2 Filed c. 31 1921 Patented Sept. 8, 1925.

UNITED STATES LAWRENCE B. JENCKES,OF WQR-CESTER, MASSACHUSETTS, ASSIG-NOB TO' CBOMPTON & KNOWLES LOOM WORKS, OF W'OIR-(JIslS'lEIlt,MASSA(IIIIII'SIE' '1".[S, A GO RP ORATIOKDF MASSACHUSETTS.

TUBE-FRAME SUPPOB'I.

Application filed December 31, 1921 1 Serial No. 526,296.-

To all whom it may concern:

Be it known that :I, LAWRENCE B. JENoKEs, a citizen of the United States, residing at Worcester, in the county'of Worcester and State of Massachusetts, haveinvented a new and useful Tube-Frame Support, of which the followingis a specification. v v

This invention relates to a device for firmly supporting the tube frames in a moquette loom, as they are successively presented in operative position. As thewidth of these looms and'the corresponding-length of the tube frames increases, it becomes very important that provision be made to. prevent sagging of the frames during the operation of inserting the tuft yarn in the warp. It. is the obj ect, of my present invention to provide improved and simplified mechanism by which the tube frame may be firmly supported at one or more mtermed-iate points, during the yarn inserting operation. In the preferred form. the supportlng mechanism is mounted upon the forward knife frame and is moved to and from operative position in timed relation to the movements of the tube frames.

My invention further relates to arrangements and combinations of parts which will be hereinafter described and more particularly pointed out in the appended claims.

A preferred form of my inventlon is shown in the drawings in which Fig. 1 is a plan view of a portion of a moquette loom with my invention applied thereto,

Fig. 2 is a sectional side elevation taken along the line 22 in Fig. 1, and

Fig. 3 is a similar view of certain of the parts shown in Fig. 2, but in a different position.

Referring to the drawings, I have shown portions of a moquette loom including a frame 10, a cam shaft 11, a. front knife frame 12, a rear knife frame 13, and a reed 14. The tubes 15 for the tuft or pile yarn are mounted on tube frames 16 extending across the loom and moved to and from operative position by clamping arms 17 mounted on swinging supports 18. For a more detailed description of these parts and the operative mechanism therefor, reference is made to the prior patent to Skinner and Tymeson, No. 233,29 0, issued October 12, 1880. -These parts are-of the usual-form and comprise no part ofmy invention.

The usual yarn spools Ior rolls 20 are supported in intermediate bearings 21 on the tube frames 1 6.v The generalconstruction of the intermediate bearingsis shown in the prior patent to Hutchins 1,065,871, is-

suedJune24, 1913. v

For ;the purposes of the present invention, I form lugs-or projections22 .on one or more of the intermediate bearings 21 and I provide one or more-corresponding fingers or arms 23 on across shaft, 24,- extending lengthwiseof the forward knife frame 12 and supported. in suitable bearings. '24 on said frame. a

A coil .spring'25: engages an outer shaft bearing 26 at one end and atits otherxend is secured in. a collar 27/adjustable onthe shaft 24. The spring, 25: acts to; yieldingly ii old the arm. 23- in the position shown in An arm 28 on the end of the shaft 24 is w connected by a link 29 to one end of a lever 30, pivoted at 31 on the frame 10 and having a roll 32 positioned for engagement by a cam 33 at each revolution of the shaft 11. An adjustable stop screw 34 limits the return movement of the lever 30 under the influence of the spring 25.

The forward knife frame 12 is mounted in the usual way upon levers 35 pivoted at 36 and connected by links 37 to actuating mechanism not shown, by which the knife frame is moved rearward tothe position shown in Fig. 2, as each tube frame is presented in operative position. As the knife frame is thus moved rearward, the cam roll 32 is engaged by the cam 33 and the arm or arms 23 are swung upward to engage the projections 22, thus firmly supporting the tube frame 16.

As the tube frame 16 is thereafter removed from operative position, the roll 32 leaves the cam 33, permitting the arms 23 to move downward while at the same time the knife frame 12 is moved forward or away from the tube frames, thus bringing the parts to the position shown in Fig. 3.

It will thus be evident that the supporting arms 23 are only in operative position when they are needed to support a tube invention as set forth in the claims, and I do not wish to be otherwise limited to the details herein disclosed, but what I claim is 1. Ina loom having a plurality of tube 3 frames movable successively to operative position, an intermediate support for an operatively positioned tube frame, and means to move said sup-port to and from engagement therewith, the frame engaging portion of said support being positioned in front of said tube frame and said means being effective to move said frame engaging portion of said support rearward from the front of the loom to operatively engage and support said tube frame.

:2. In a loo-mjhaving a. plurality of tube frames movable successively to operative position, an intermediate support for an operatively positioned tube frame, a knife frame on which said support is mounted,

means to move said knife frame toward an operatively positioned tube frame, and means to'glve said supportan additional movement to engage said frame.

3. In a. loom having a plurality of tube frames movable successively to operative position, an intermediate support for an operatively positioned tube frame, a forward knife frame on which said support is mounted, and means to move said support rearward and upward to engage an operatively positioned tube frame.

4. In a loom having a plurality of tube frames movable successivelyto operative position, a knife frame and means to move said frame, a tube frame support comprising a cross shaft mounted on said knife frame, an arm on said shaft, and means to turn said shaft as said knife frame is moved toward an operatively positioned tube frame.

5. In a loom having a plurality of tube frames movable successively to operative Y position, a cross shaft, positioned in front of said tube frames, a movable support for said cross shaft, frame-supporting arms on said cross shaft, means to turn said shaft, and means to move said cross shaft support to periodically advance said shaft and arms to operative position. I

6. In a loom, in combination, a movable knife frame, a plurality of tube frames movable successively to operative position, and a support for the operatively positioned tube frame, said support being mounted on and movable with the knife frame and engaging the tube frame at an intermediate point thereof.

In testimony whereof I have hereunto aflixed my signature.

LAWRENCE B. JENCKES. 

